Mesocricetus auratus
Syrian Hamster (Mesocricetus auratus) Care Guide
Featured photosyrian-hamster.jpgThe Syrian hamster is the most familiar pet hamster — a solitary, nocturnal rodent native to a small region of northern Syria. Adults reach 13 to 18 cm and live in single-occupant cages: cage-mates fight to the death after sexual maturity. Modern welfare guidance (RSPCA, ESPCC) sets a minimum unbroken floor of 80 by 50 cm, with deep bedding for burrowing.
Care facts at a glance
- Cage size
- Minimum 80 by 50 cm of unbroken floor space (4000 cm²) per ESPCC and RSPCA welfare guidance; 100 by 50 cm preferred. Bedding 20 to 40 cm deep so burrows can hold their shape.
- Diet
- Granivorous omnivore: 12 to 15 g per day of a balanced hamster mix (seeds, grains, dried herbs) supplemented with small portions of fresh leafy vegetables and occasional protein (mealworms, plain boiled egg). Avoid citrus, onion, and sugary fruit.
- Lifespan
- 2–3 years
- Common diseases
- Wet tail (proliferative ileitis), Cheek pouch impaction, Cushing's disease
Overview
Mesocricetus auratus was first described from a single litter collected near Aleppo in 1930; almost every Syrian hamster in the global pet trade descends from that founding population. The species is endangered in the wild but abundant in captivity, where its short lifespan and clear behavioural cues make it a long-running first pet.
Housing Priorities
- Single-occupant only — adults are obligate solitaries and will fight on sight.
- Continuous floor space, not stacked levels: 80 by 50 cm minimum.
- 20 to 40 cm of paper or aspen bedding so burrows hold structure.
- A solid-surface 20 cm wheel (smaller wheels arch the spine).
- Hideouts of multiple chambers — Syrians use separate latrine, larder, and nest rooms.
Common Problems
Wet tail (Lawsonia intracellularis enteritis) is the textbook young-Syrian killer — onset is rapid and mortality without immediate vet care is high. Cheek pouch impaction shows as a soft swelling that does not empty after feeding. Older animals develop Cushing's-type hair thinning across the flanks; bloodwork distinguishes it from seasonal moult.
Behaviour
Strictly nocturnal — handling before late evening usually catches the animal mid-sleep and risks defensive bites. Syrians are confident handlers once acclimated and rarely climb, making low-walled bin cages workable provided the floor area is met.
Sources & further reading (3)
- welfare-guidance — accessed 2026-04-28
- iucn-red-list — accessed 2026-04-28
- encyclopedia — accessed 2026-04-28
Frequently asked questions
Can two Syrian hamsters share a cage?
No. Adults are obligate solitaries and will fight, often fatally, even between siblings raised together. Pair-housing is a common cause of vet emergencies in this species.
How big should the wheel be?
At least 20 cm in diameter for adult Syrians. Smaller wheels force the spine into a permanent arch and cause lordosis over time. Solid running surface — wire bars catch toes.
Why is my Syrian hamster only awake at night?
Mesocricetus auratus is strictly nocturnal in the wild. Most pet Syrians settle into a routine that wakes around 19:00 to 22:00 and runs through the night. Handling earlier than the natural waking time risks defensive bites.
